tetraspore


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tetraspore

the product of MEIOSIS in many red and brown algae, being produced in fours in testrasporangia and forming the first cells of the GAMETOPHYTE generation.
References in periodicals archive ?
The production of tetraspores and carpospores by red algae is able to produce macroalgae germlings that are suitable for juvenile abalone (5-15 mm SL) consumption.
Tetraspores 60-70 [micro]m long and 30-40 [micro]m in diam., zonately divided, being formed in the periphery of a conceptacle.
Spores of the crusts (meiotic tetraspores) give rise to haploid male and female upright gametophytes.
Furthermore, if the monosomic 1R chromosome did pair with one of the wheat chromosomes at male meiosis of the F1 hybrid, from which WER-1-1 was derived, the recombinant chromosomes, i.e., the abnormal 1R chromosome and the 1R-wheat translocation chromosome, will go into different tetraspores, and after anther culture, these two chromosomes should appear in different pollen-derived plants.
Tetraspores (meiospores) of the hosts Polyneura latissima, Phycodrys setchellii, and Anisocladella pacifica were isolated, and the resultant gametophytes were grown until gametes were differentiated.